annotate toolboxes/FullBNT-1.0.7/bnt/potentials/@cgpot/pot_to_marginal.m @ 0:e9a9cd732c1e tip

first hg version after svn
author wolffd
date Tue, 10 Feb 2015 15:05:51 +0000
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wolffd@0 1 function m = pot_to_marginal(pot)
wolffd@0 2 % POT_TO_MARGINAL Convert a cgpot to a marginal structure.
wolffd@0 3 % m = pot_to_marginal(pot)
wolffd@0 4
wolffd@0 5 pot = cg_can_to_mom(pot);
wolffd@0 6 m.domain = pot.domain;
wolffd@0 7 n = pot.csize;
wolffd@0 8 d = length(pot.mom);
wolffd@0 9 if n==0
wolffd@0 10 m.mu = [];
wolffd@0 11 m.Sigma = [];
wolffd@0 12 else
wolffd@0 13 m.mu = zeros(n, d);
wolffd@0 14 m.Sigma = zeros(n, n, d);
wolffd@0 15 end
wolffd@0 16 m.T = 0*myones(pot.dsizes);
wolffd@0 17 for i=1:pot.dsize
wolffd@0 18 s = struct(pot.mom{i}); % violate privacy of object
wolffd@0 19 if n > 0
wolffd@0 20 m.mu(:,i) = s.mu;
wolffd@0 21 m.Sigma(:,:,i) = s.Sigma;
wolffd@0 22 end
wolffd@0 23 m.T(i) = exp(s.logp);
wolffd@0 24 end
wolffd@0 25 if isvectorBNT(m.T)
wolffd@0 26 m.T = m.T(:)';
wolffd@0 27 end